Mam nastepujacy problem, staram się wysłać maila HTML za pomocą PHPMailera, wszystko jest niby ok, ale np. na gmail dochodzi mail bez grafiki, sam tekst

Wie ktos moze dlaczego?
Oto kod:
<?php require("phpmailer/class.phpmailer.php"); $mail = new PHPMailer(); $mail->IsSMTP(); $mail->Host = ""; $mail->SMTPAuth = true; $mail->Username = 'login'; $mail->Password = 'haslo'; $mail->CharSet = "UTF-8"; $mail->From="mail@mail.com"; $mail->FromName="Name.."; $mail->Sender="mailer@example.com"; $mail->AddReplyTo("mail@mail.com", ""); $mail->AddAddress("mail1@mail.com"); $mail->Subject = "temat"; $mail->IsHTML(true); $mail->Body = "<div style=\"font-weight: bold; color: #bfdddf; float: left;width: 347px;height: 496px;background-image: url(http://clubbing.czest.pl/lewoMail.png);\">"; $mail->Body.= "<div style=\"position: relative; top: 295px; left: 100px;\">"; $mail->Body .= "<a target=\"_blank\" style=\"text-decoration: none; font-size: 16pt;\" href=\"http://www.codeguru.pl/wydarzenia\">CodeGuru.pl</a></div></div>"; $mail->Body .= "<div style=\"float: left;width: 355px;height: 496px; background-image: url(http://clubbing.czest.pl/prawoMail.png);\"></div>"; $mail->AltBody="ALT Body."; if(!$mail->Send()) { } else { } ?>